Uh-oh dude, get that smelly jar out of there!
I made the same mistake on my first time and said I'll wait until I get home from school to isolate the possibly contaminated jar.
BIG mistake... 9 jars gone between morning and afternoon
Isolate it ASAP and aside from puting it in a bag, move it to another location in whatever room it's in.
You really don't want contamination, dude.